Miniclip's "8 Ball Pool" is an online game hosted at the Miniclip website. The game is multiplayer-only, requiring the player to be online and play in one-on-one matches or eight-person tournaments against other players.
There is no charge to play "8 Ball Pool," but the game has optional microtransactions. The player needs "Pool Coins" to join games. A certain amount of these are given randomly each day, but they are also available for purchase.
The rules of the game are similar to actual eight-ball billiards. After each match, players earn "experience points," rise in ranks and gradually unlock new features such as new match types and tournament parameters.